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Burette, Straight Bore Glass Key
Precision-Ground Straight Bore Stopcock: Features a hand-lapped glass key with a standardized taper, ensuring a leak-proof hermetic seal and smooth rotational control for infinitesimal drop-wise liquid dispensing.
High-Contrast Permanent Graduations: Utilizes fire-fused ceramic enamel markings calibrated for Class A or B tolerances, providing permanent legibility and high resistance to aggressive laboratory solvents and cleaning agents.
₹335.00
Quick answer: This Straight Bore Burette uses a glass stopcock (key) to control the precise, drop-by-drop delivery of a liquid reagent during titration. Burette, Straight Bore Glass Key is priced at approximately ₹335 (indicative market benchmark, incl. GST, August 2026).
A burette is a long, graduated glass tube used to deliver a precisely measured, variable volume of liquid reagent during a titration. This version uses a straight-bore glass stopcock (key) at the bottom to control flow — turning the key opens a straight channel through the glass, letting the user control the rate of delivery down to individual drops. Made from borosilicate glass, it’s a standard instrument for titration in college and research analytical chemistry laboratories.
Technical Specifications
| Parameter | Detail |
|---|---|
| Product Type | Burette, straight bore glass key (stopcock) |
| Function | Precise, controlled delivery of liquid reagent during titration |
| Stopcock Type | Straight bore glass key |
| Construction | Borosilicate glass |
| Exact capacity/graduation increments | Not independently verified for this listing — confirm with STEMAids before ordering |
| Price | Approx. ₹335 (indicative market benchmark, incl. GST, August 2026) |
| Exact dimensions/technical detail | Not independently verified for this listing — confirm with STEMAids before specifying in a tender |
Applications
- Acid-base and other titrations requiring precise reagent delivery
- Analytical chemistry practicals
- College and research chemistry laboratory volumetric analysis
- General-purpose controlled liquid dispensing
Care & Maintenance
- Grease the glass stopcock key lightly to keep it turning smoothly and sealing well
- Clean thoroughly after each use to prevent residue from affecting future readings
- Store upright, ideally on a burette stand, to protect the graduated tube
Why Choose STEMAids
STEMAids supplies a wide range of Chemistry Lab Equipments including Economy Calorimeter for related laboratory and classroom needs. Eduscope Smart Learning Solutions Private Limited is a Udyam-registered micro manufacturing enterprise (UDYAM-DL-06-0069460) and ISO 9001:2015 certified, supplying schools, colleges and vocational institutes across India and for export.
Frequently Asked Questions
What is a straight bore glass key burette used for?
It’s used to deliver a precisely controlled, variable volume of liquid reagent during titration, using a glass stopcock to control the flow rate down to individual drops.
What capacity does this burette hold?
The exact capacity and graduation increments have not been independently verified for this listing — confirm with STEMAids before ordering.
What’s the difference between this and STEMAids’ PTFE key or Rotaflow burettes?
This version uses a glass-on-glass stopcock, which needs greasing; STEMAids also lists PTFE-key and Rotaflow versions that use different stopcock mechanisms — choose based on your preference for maintenance and chemical compatibility.
Is this suitable for a college chemistry teaching lab?
Yes — burettes of this kind are standard equipment for titration practicals in analytical chemistry coursework.
Does STEMAids supply matching burette stands and clamps?
Contact STEMAids to confirm compatible support equipment for a complete titration setup.
Is STEMAids a registered manufacturer of this product?
Yes. Eduscope Smart Learning Solutions Private Limited is a Udyam-registered micro manufacturing enterprise (UDYAM-DL-06-0069460) and is ISO 9001:2015 certified. See the About page for full registration and certification details — manufacturer-stated, verify before citing in procurement documents.
Last updated: 29 August 2026.
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